Home / 19,330.78-26,680.26-11,379.82

Finding the Fourth Proportional to 19,330.78, 26,680.26 and 11,379.82

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Solution

The fourth proportional to 19,330.78, 26,680.26 and 11,379.82 is: 15,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.78 : 26,680.26 = 11,379.82 : x
  2. Step 2: Convert to fraction form
    19,330.78/26,680.26 = 11,379.82/x
  3. Step 3: Cross multiply
    19,330.78x = 26,680.26 × 11,379.82
  4. Step 4: Simplify right side
    19,330.78x = 303,616,556.35
  5. Step 5: Solve for x
    x = 303,616,556.35/19,330.78
  6. Step 6: Final answer
    x = 15,706.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.